[  502.834942] bond0: (slave eth0): making interface the new active one
[  502.835020] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.024018] bond0: (slave eth0): Releasing backup interface
[  507.091411] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.253429] bond0: (slave eth0): Releasing backup interface
[  511.281433] bond0 (unregistering): Released all slaves